Mishimoto MMTS-WRA-87L Racing Thermostat Fits Jeep Wrangler 2.5L/4.0L/4.2L 1987-2006

Opens and flows exactly at the temperature advertised. Dont go cheap on your thermostat. Mishimoto is the bee's knees. This is the 5th or 6th product from them I have used. Their radiators are phenomenal in quality, looks and performance, as are the transmission oil coolers. These are what the manufacturer should have installed from the start. Keep your motor alive forever! ( or till you sell it and miss it, lol!)

Excellant product!

Works like a champ! It controls the engine temp very well and much lower than a factory spec thermostat.

So far so good but I replaced everything. 4 row radiator and electric fans along with the thermostat. I'm running around 180 -190. My jeep is carrying extra weight. Heavy duty front rear bumpers along with winch and body armor. Also larger tires among other things. Probably extra 600 lbs. I spend alot of time off road going slow up alot of hills. It was always getting hot. Running the heater full blast when it's 95 out to keep it from overheating was getting old.

Installed on my xj along with high flow housing cause mine was leaking works great keeps temps at a solid 180-190

Just installed on my wife’s 2006 Wrangler Unlimited Rubicon that had been overflowing from the overflow tank when in stop and go traffic in 90 degree plus heat. Made a huge mess of the engine bay as the fluid got sprayed all over. The new thermostat replaced the original factory part and is 10 degrees cooler under worst traffic conditions and 15 degrees cooler when driving around town. The dash temperature needle is actually visibly lower and we are most pleased. Definitely get a new gasket and an plastic scraper tool as my old gadget was literally fused to the engine block. Would have been a 45 min job if I didn’t have to spend 2 hours getting the old gasket off. We used the Mopar fluid too.

Works perfect make sure you buy the gasket also. They always brake saved you an extra trip

Failed stuck open after only 2 weeks 😒

Installed in my jeep xj along with felpro gasket, great update. Worth having in your jeep.

Gran desempeño de este termostato, importante comprarlo con la junta para no perder tiempo. El motor de mi Jeep Tj se mantiene 10 grados abajo de lo normal en las peores condiciones de tráfico. Mishimoto rules. Súper recomendable.

Muy buen producto. Excelente calidad.